Growth of marine fungi on polymeric substrates

Table 2 K_r and growth on agar-solidified medium with various N sources, glucose as C source

Strain^g	KF525	LF562	LF550	LF458	LF580	KF079
Ammonium	13 ± 1^ea	40 ± 2^b	93 ± 5^b	143 ± 5^d	30 ± 3^a	384 ± 15^d
Ammonium	++++^f	++++	++++	++++	++++	++++
Nitrate	16 ± 1^b	41 ± 1^b	60 ± 3^a	98 ± 2^a	134 ± 2^c	228 ± 4^b
Nitrate	+	++++	+++	++++	++++	++++
Urea	16 ± 2^b	40 ± 1^b	54 ± 2^a	110 ± 1^ab	103 ± 2^b	264 ± 3^c
Urea	+++	++++	++	+	+++	+++
Casein	21 ± 2^b	49 ± 0^c	94 ± 2^b	127 ± 2^c	198 ± 9^d	106 ± 2^a
Casein	+++	++++	+++	+++	++++	+++
Gelatin	27 ± 1^c	49 ± 2^c	84 ± 4^b	115 ± 3^b	212 ± 3^d	236 ± 8^bc
Gelatin	+++	++++	+++	++	+++	+++
No nitrogen	15 ± 1^ab	34 ± 1^a	63 ± 3^a	119 ± 1^a	99 ± 5^b	256 ± 7^c
No nitrogen	+	++	+	+	++	++

^eValues are average K_r ± sem (μm h⁻¹) for n = 4 to 12. Values for the same strain with the same superscript letter (a to d) did not differ significantly (p > 0.05)
^fExtent of growth indicated as: + weak, ++ moderate, +++ good or ++++ very good
^g Calcarisporium sp. KF525, Tritirachium sp. LF562, Bartalinia robillardoides LF550, P. pinophilum LF458, S. brevicaulis LF580 and Pestalotiopsis sp. KF079